Exception handling and resolution for transactional object groups
Advances in exception handling techniques
Exception Handling and Resolution for Transactional Object Groups
Advances in Exception Handling Techniques (the book grow out of a ECOOP 2000 workshop)
Unification of Transactions and Replication in Three-Tier Architectures Based on CORBA
IEEE Transactions on Dependable and Secure Computing
Active Replication of Multithreaded Applications
IEEE Transactions on Parallel and Distributed Systems
Handling Emergent Nondeterminism in Replicated Services
Architecting Dependable Systems V
Living with nondeterminism in replicated middleware applications
Proceedings of the ACM/IFIP/USENIX 2006 International Conference on Middleware
The case for determinism in database systems
Proceedings of the VLDB Endowment
Rectifying orphan components using group-failover in distributed real-time and embedded systems
Proceedings of the 14th international ACM Sigsoft symposium on Component based software engineering
Living with nondeterminism in replicated middleware applications
Middleware'06 Proceedings of the 7th ACM/IFIP/USENIX international conference on Middleware
Fault-tolerant replication based on fragmented objects
DAIS'06 Proceedings of the 6th IFIP WG 6.1 international conference on Distributed Applications and Interoperable Systems
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One way to implement a fault-tolerant a service is by replicating it at sites that fail independently. One of the replication techniques is active replication where each request is executed by all the replicas. Thus, the effects of failures can be completely masked resulting in an increase of the service availability. In order to preserve consistency among replicas, replicas must exhibit a deterministic behavior, what has been traditionally achieved by restricting replicas to be single-threaded. However, this approach cannot be applied in some setups, like transactional systems, where it is not admissible to process transactions sequentially. In this paper, we present a deterministic scheduling algorithm for multithreaded replicas in a transactional framework. To ensure replica determinism requests to replicated servers are submitted by means of reliable and totally ordered multicast. Internally, a deterministic scheduler ensures that all threads are scheduled in the same way at all replicas what guarantees replica consistency